shutdown(2) - NetBSD Manual Pages

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SHUTDOWN(2)               NetBSD Programmer's Manual               SHUTDOWN(2)


NAME

     shutdown - shut down part of a full-duplex connection


SYNOPSIS

     #include <sys/socket.h>

     int
     shutdown(int s, int how);


DESCRIPTION

     The shutdown() call causes all or part of a full-duplex connection on the
     socket associated with s to be shut down.  If how is 0, further receives
     will be disallowed.  If how is 1, further sends will be disallowed.  If
     how is 2, further sends and receives will be disallowed.


DIAGNOSTICS

     A 0 is returned if the call succeeds, -1 if it fails.


ERRORS

     The call succeeds unless:

     [EBADF]       S is not a valid descriptor.

     [ENOTSOCK]    S is a file, not a socket.

     [ENOTCONN]    The specified socket is not connected.


SEE ALSO

     connect(2),  socket(2)


HISTORY

     The shutdown() function call appeared in 4.2BSD.

4.2 Berkeley Distribution        June 4, 1993                                1